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Wed, 05 Jun 2024 11:03:01 -0700 (PDT) Date: Wed, 5 Jun 2024 18:02:35 +0000 In-Reply-To: <20240605180238.2617808-1-joychakr@google.com> Mime-Version: 1.0 References: <20240605180238.2617808-1-joychakr@google.com> X-Mailer: git-send-email 2.45.1.467.gbab1589fc0-goog Message-ID: <20240605180238.2617808-5-joychakr@google.com> Subject: [PATCH v1 14/17] thunderbolt: switch: Change nvmem reg_read/write return type From: Joy Chakraborty To: Srinivas Kandagatla , Greg Kroah-Hartman , AngeloGioacchino Del Regno , Lars-Peter Clausen , Sakari Ailus , Bingbu Cao , Zhihao Cheng , Jerome Brunet , Martin Blumenstingl Cc: linux-hwmon@vger.kernel.org, linux-kernel@vger.kernel.org, linux-iio@vger.kernel.org, linux-media@vger.kernel.org, linux-i2c@vger.kernel.org, linux-gpio@vger.kernel.org, linux-mtd@lists.infradead.org, linux-rtc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-amlogic@lists.infradead.org, linux-sunxi@lists.linux.dev, linux-tegra@vger.kernel.org, linux-usb@vger.kernel.org, manugautam@google.com, Joy Chakraborty X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240605_110306_227567_B753329B X-CRM114-Status: GOOD ( 10.42 ) X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-mtd" Errors-To: linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org Change nvmem read/write function definition return type to ssize_t. Signed-off-by: Joy Chakraborty --- drivers/thunderbolt/switch.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/thunderbolt/switch.c b/drivers/thunderbolt/switch.c index 326433df5880..35424a65cd3a 100644 --- a/drivers/thunderbolt/switch.c +++ b/drivers/thunderbolt/switch.c @@ -301,7 +301,7 @@ int tb_switch_nvm_read(struct tb_switch *sw, unsigned int address, void *buf, return dma_port_flash_read(sw->dma_port, address, buf, size); } -static int nvm_read(void *priv, unsigned int offset, void *val, size_t bytes) +static ssize_t nvm_read(void *priv, unsigned int offset, void *val, size_t bytes) { struct tb_nvm *nvm = priv; struct tb_switch *sw = tb_to_switch(nvm->dev); @@ -321,10 +321,10 @@ static int nvm_read(void *priv, unsigned int offset, void *val, size_t bytes) pm_runtime_mark_last_busy(&sw->dev); pm_runtime_put_autosuspend(&sw->dev); - return ret; + return ret < 0 ? ret : bytes; } -static int nvm_write(void *priv, unsigned int offset, void *val, size_t bytes) +static ssize_t nvm_write(void *priv, unsigned int offset, void *val, size_t bytes) { struct tb_nvm *nvm = priv; struct tb_switch *sw = tb_to_switch(nvm->dev); @@ -342,7 +342,7 @@ static int nvm_write(void *priv, unsigned int offset, void *val, size_t bytes) ret = tb_nvm_write_buf(nvm, offset, val, bytes); mutex_unlock(&sw->tb->lock); - return ret; + return ret < 0 ? ret : bytes; } static int tb_switch_nvm_add(struct tb_switch *sw) -- 2.45.1.467.gbab1589fc0-goog ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/